trans-[Ru(CO)(ethanol)I2(4,4'-dicarboxy-2,2'-bipyridine)] | 868134-31-0

• 英文名称: trans-[Ru(CO)(ethanol)I2(4,4'-dicarboxy-2,2'-bipyridine)]
• 英文别名: trans-[Ru(CO)(C2H5OH)I2(dcbpy)]
• CAS: 868134-31-0
• 化学式: C₁₅H₁₄I₂N₂O₆Ru
• 分子量: 673.165
• InChiKey: JTLPPGXWAWEOAC-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  (trans-I) [Ru(dcbpy)(CO)2I2] 以 乙醇 为溶剂， 生成 trans-[Ru(CO)(ethanol)I2(4,4'-dicarboxy-2,2'-bipyridine)]
  参考文献：
  名称：

  Ru（dcbpy）（CO）2I2在低至20 fs时间分辨率的溶液中光致离解机理的研究。

  摘要：

  通过瞬态吸收光谱研究了（trans-I）Ru（dcbpy）（CO）2I2（dcbpy = 4,4'-二羧酸-2,2'-联吡啶）在乙醇中光诱导的配体交换反应的机理。使用以325 nm为中心的20 fs紫外线激发脉冲来填充反应物的振动热激发pi联吡啶基状态，该状态迅速松弛到离解的Ru-I状态，从而释放出一个羰基。量子产率的测量表明，最初存在的反应物分子中约40％形成了最终的光产物。在正在进行的反应的可见光区域中，在所有探针波长处都观察到瞬态吸收（TA）信号中有62 fs的上升分量，而光产物的上升受到脉冲限制（20 fs）。我们将观察到的62 fs时间分量分配给排斥性CO解离状态的减少。在波数为90 cm（-1）时观察到TA信号的振动相干性。将典型的I-Ru-I振动模式的解析频率分配给五配位中间体的碘的反式顺式异构化，并在500 fs内对该振荡进行阻尼以同时进行溶剂配位。热反应物和产物分子的冷却时间很短，从4到270

  DOI：

  10.1021/jp044735s

文献信息

• Transient Midinfrared Study of Light Induced Dissociation Reaction of Ru(dcbpy)(CO)₂I₂ in Solution
  作者：Viivi Lehtovuori、Jukka Aumanen、Pasi Myllyperkiö、Matteo Rini、Erik T. J. Nibbering、Jouko Korppi-Tommola

  DOI：10.1021/jp036492u

  日期：2004.3.1

  Illumination of Ru(dcbpy)I-2(CO)(2) (dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) with (near) ultraviolet light induces dissociation of one of the CO groups of the complex. In solution the opened coordination site of the metal is occupied by a solvent molecule. In the present study the kinetics of the ligand exchange reaction has been studied in solution with femtosecond time resolution by probing the CO stretching vibrations of the reactant and the product molecules Ru(dcbpy)I-2(CO)(EtOH) in the infrared and probing electronic transitions in the visible spectral regions. The kinetic results indicate that photoelimination of the CO group occurs on a subpicosecond time scale. The overall quantum yield of the reaction is well below unity (0.3), indicating that the majority of the excited parent molecules does not convert to the product molecules. According to the present observations, recovery of the parent molecule takes place on a subpicosecond time scale. Later time evolution shows relaxation of this state with time constants of 4 and 68 ps. Dissipation of the excess energy of the solvated product is characterized by a biexponential relaxation process with time constants of 18 and 270 ps.